Add pr labeler (#83)

* ci: add labeler workflow

* ci: add labeler config

Author: manekinekko

.github/labeler.yml

@@ -0,0 +1,11 @@
+"scope: core":
+  - src/core/*
+
+"scope: cli":
+  - src/cli/*
+  
+"scope: auth":
+  - src/auth/*
+ 
+"scope: proxy":
+  - src/proxy/*

.github/workflows/labeler.yml

@@ -0,0 +1,11 @@
+name: "Pull Request Labeler"
+on:
+- pull_request_target
+
+jobs:
+  triage:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@main
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"